The fuser-heater cycling is a good point. Another one I've heard was a back-in-a-dark-corner freezer that was plugged in but not used—in this case, its cord was a couple of feet from reaching the wall receptacle.
To power it, the homeowner got out his new “heavy-duty” 16/3 100-foot extension cord, still wadded into a hank, but fortunately resting on a concrete floor. The hermetic-compressor motor would not start with the extreme voltage drop, so it had been cycling by the internal locked-rotor thermal cutout for weeks before it was discovered by a nearly insane electrician.
